Device for recovering submerged logs.



No. 882,310. PATENTED MAR. 17, 1908.

P. J. HATHWAY. DEVICE FOR REOOVERINGSUBMBRGBD LOGS.

APPLIUATION FILED OUT. 1, 1907.

FRANK J. HATI-IWAY, OF CHICAGO, ILLINOIS.

DEVICE FOR RECOVERING SUBMERGED LOGS.

Specification of Letters Patent.

Patented March 17, 1908.

Application filed October 1, 1907. Serial No. 395,427.

To all whom it may concern:

.of various conditions and sizes and constructed to automatically right itself if deflected from operative position, for finding submerged logs and engaging them for hoisting to the surface of the water.

The device may be most conveniently used in connection with a windlass and boat by which it is drawn through bodies of water in which the logs are supposed to be submerged.

In the accompanying drawings I have shown a device embodying my invention in its preferred form and a device illustrating certain modifications thereof.

Figure 1 is a side view. Fig. 2 is a central sectional view showing the swinging hook in its closed position, its open position being indicated in dotted lines. Fig. 3 is a side view similar to Fig. 1, illustrating a device in which a modified form of buoy, a cylindrical air chamber, has been substituted for the form shown in the first mentioned figure. Fig. 4 is an end view of the device shown in Figs. 1 and 2.

In the drawings, A indicates a frame com prising two horizontal beam pieces or plates 5, preferably of wood, to the rear end of which are bolted, or otherwise rigidly attached, two vertical pieces or plates 6, carrying upon them, near their lower ends, one or more projecting shoes 7 and one or more pairs of sharp pointed dogs 8, adjustable and interchangeable vertically. These parts are preferably of metal, and may be secured either on the inside or outside of plates 6, as desired. The parts are maintained in proper position in the water, i. 6., right side up with the rear vertical plates projecting downwardly from the horizontal plates, by means of a buoy or air chamber B secured above the plates 5. I prefer to construct this buoy as shown in Figs. 1 and 2, in the form of a wedge shaped box, diminishing in capacity from rear to front. This buoy or air tight chamher is provided with a suitable air cock C, and tends to maintain the plates 5 in horizontal position. It is preferably constructed of boiler iron, but a wooden box, zinc or tinned lined, may be used to advantage.

In Fig. 3 a modified form of air chamber is shown. A cylindrical box B similar in construction to B is fastened above the plates 5 and to a taper head block b on the forward end of the device. Both of the above described constructions are adapted to hold the device in the horizontal position described and permit it to sink by gravity to the bottom. The buoyancy may be regulated by letting out or pumping in air through the cock 0.

As above stated, the device normally rests at the bottom of the water with the top of the air chamber in horizontal position, but when power is applied to the forward end, it is trailed through the water at an angle resting on the shoe 7 or the end of plates 6. This places the dogs in an upwardly inclined position. Both the dogs 8 and shoe 7 are adjustable to different positions on plates 6 by means of registering openings 19 and threaded nuts and bolts, bolt 20 passing through the axis of shoe 7 and 21 into dogs 8. By this adjustment the angle at which the device stands on beam 5 may be varied as desired. Near the rear ends of the plates 5 is pivoted between them at 12 a swinging hook 9 and to the forward ends eyes or sheaves 10 and 11 are provided one above the other socured to the plates 5. Beyond the point 12, at the rear end of the plates 5, is provided a sheave or eye 13 and at the point 14, intermediate between the pivotal point 12 and the sharp end 15 of the hook 9, is provided an eye or clevis 14 to which is attached the cable 16. This cable passes over the eye or sheave 13 and under the eye or sheave 11 to a windlass or other suitable power (not shown). Intermediate of the eye or clevis 14 and the sharpened end 15 of the hook 9 is provided an eye or clevis 17 in which a cable 18 is secured, this cable passing under the eye or sheave 10 where it is attached to a Windlass or other suitable power (not shown). On application of substantially the same power through cables 16 and 18 the device is trailed through the water without moving the hook 9, but when the tension becomes unequal on 16 and 18 the hook is moved backward or forward, one cable pulling against the other. As shown in the drawings the hook 9 co- 5 operates with the plates 6 to, form alog lock and may be swung out of the way between the pieces 5, as illustrated in dotted lines 1n Fig. 2.

The operation of my device is as. follows: a

10 The amount of air in the buoy is first regulated and the machine placed in the water to be, searched for; submerged logs with the ables- ,6 nd 18 a ach d to Windla s a deck or in the stern of a boat. The, device by the weight of its metal parts, the

" buoy holding it right, side up so. that it finally rests. on the bottom on the lower end of plates 6. Traction power being applied, the. device stands; at an angle, resting on the shoe 7. The shoe and dogs are interchangeable, the adjMStment of the shoe limiting the depth the legs or dogs, dig into. the bottom. The cable 18, is drawn in and the cable 16, let out so as to. swing the hook 9.- into the position shown 2;; in dottedlines in Fig. 2. The sharp pointed dogs. 8 being in adv nce of the plates 6. may strike into the submerged log or they 1 may miss it, and pass under it, and the plates 6 strike it first. In either event, as soon asv the, operator is aware of the impact, he lets Ont, the cable. 1 8, which suddenly transfers the entire strain to cable 16, thereby swinging the hook 9, sharply towards the plates. 6- &Ed sinking the point into the log or under t, husg a p g th l g etween the hook plates 6. The log is then brought to. the su-rfajceby power-exerted on the cables in the ust al manner.- The parts are, all made detachable so. that they may be readily reed P ace w en r k I ai 1 In a device for recovering submerged logs, aframe comprising horizontal and Yertical pieces rigidly secured together at an angle 4e, one to, the other, an air chamber secured on the top. of said horizontal piece, a swinging hook on, said frame coo-crating with said vertical piece to gras a og and means. for swingingsaid hook 59;. said vertical piece, substantially as described. In a device for recovering-submer ed lcgy h ail chamber having beam pieces astened to, the bottom thereof, downwardly projecting pieces. rigidly secured to the rear of; said beam pieces, an adjustable drag shoe on. the rear ofthelower portion of said downwardly projecting pieces, a dog on the front of; the lower portion of said downwardly project ng. Pieces, a w nging h ok ivoted ap -said beam pieces, sheaves or eyes, and ca- "bles; adapted alternately to swing said hook logs, a frame comprising horizontal and; vertical beam piecesv rigidlysecured at. the ends, an air chamber on topof said horizontal away from said downwardly projecting ieces, and into cooperation therewith to. Qrm; a log lock, substantially as described.

6,.5.- 3.. In combination with an air chamber a the beds of bodies. of waterand said hock swung back and forth in and out of coper-ation with said vertical ternately to and from the rear end thereof, pairs of; registering submerged logs, substantially as described.

4. In combination with an air chamber having a beam piece secured beneath it, 75

-downwardly projecting pieces adapted to strike objects their path of travel, a swinging hook a p e to.v odp ate wi h said downwardly projecting pieces to, ferm a leg ock, me ns for swing ng said hoc alter nately i l d out of su h peration andfor drawing said beam from its, forward end, and a drag shoe on the rear of the. lower portion of said downwardly projecting pieces adap; ed to limit the depth said legs may sink into the bottom orbed.

5 In combination with a frame comprising a horizontal beam and a vertical, piece secured on one end thereof and a wi g-h1g1 hook, an air chamber secured abeve said frame, the buoyancy of said chambQl being: adapted no ma ly to mai tain said am with its, beam in horizontal position and per mit said parts to sink gradually and an a cock in said chamber whereby the buoyancy ea of said chamber may be alternately increased or decreased, substantially asdescribed.

6. In a device for recovermg; submerged logs, vertical pieces ada ted to strike objects; in their paths of traveli a, horizontal beam having a swinging hook ada ted to form the -movable member of a, log ock, means for maintaining the equilibrium of said parts, a shoe on the lower rear portion of said vertical pieces, meansv for adjusting said shoe to. 5

difierentheights thereon and cables attached to. opposite sides of said hook an passing through sheaves on the forward end of said beam whereby said device may be trailed on pieces, substantially as described.

7. In a device for recovering submerged logs, a cylindrical air chamber, a beam se- 131 5 cured to the bottom thereof, meansforregulating the degree of buoyancy of said chams ber, a swinging hook, a pair of vertical pieces:

at an angle to. said beam rigidly secured to 12:0 openings the lower portion, of said pieces, I

shoes. projecting in the rearof said vertical pieces and means for securing them. anyvpair of aid openings, substantially as did scribed.

12:5 8. In a device. for recovering submerged piece, and means cooperating with said ver- .0

tical piece to alternately grasp and release a securing them at various heights on said verlog. tical piece. 10

9. In a device for recovering submerged In testimony whereof I hereunto ailix my logs, an air chamber and beam secured to the signature in the resence of two Witnesses.

.5 bottom thereof, a vertical piece secured at an RANK J. HATHWAY.

angle to said beam to the rear end thereof, a Witnesses: swinging hook, shoes projected in the rear of CHARLES L. HINE,

said vertical piece, and means for adjustably ARTHUR GREENE. 

